01-08-2023 дата публикации
Номер: CN116512795A
Принадлежит:
The invention relates to the technical field of projection pens, and particularly discloses a portable projection calligraphy practicing and drawing pen which comprises a top column, a camera is arranged on the outer wall of the top column, a power socket is formed in the top end of the top column, a power key is arranged at the top end of the top column, the bottom end of the top column is in threaded connection with a fixing column, and a battery is arranged on the inner side of the fixing column; the sleeve column is fixedly connected to the bottom end of the fixed column; according to the projection calligraphy practicing drawing pen, a user can conveniently and rapidly fix the position of the drawing pen, meanwhile, the projection pen is rapidly installed on a table top, meanwhile, a camera, a battery and a chip fixedly installed on the inner side of a top column are arranged on the inner sides of the top column and a fixing column, and therefore the integrated projection calligraphy ...
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